Process of applying designs to cylinders



June 24, 1930. w. H BANZETT 1,767,644

PROCESS OF APPLYiNG DESIGNS T0 CYLINDERS Filed Feb. '7, 1928 2 Sheets-Shept 1 21 p .9 :3 W 990 E] [F] 2.9 30 k i 1 25 O I Q V. INVENTOR- ATTORNEY June 24, 1930.. I w. H. BANZETT 4 PROCESS OF APPLYING DESIGNS T0 CYLINDERS I Filed Feb. 1928 2 Sheets-Sheet 2 IN V EN TOR.

BY Mun. 7h 515 141- ATTORNEY Patented June 24, 1930 UNITED STA TES PATENT 'FFICE WILLIAM BANZETT, OF BERGENFIELD, NEW JERSEY, ASSIGNOR '10 AMERICAN LITHOGRAPHIG COMPANY, INC, OF NEW YORK,[H. Y.,'A CORPORATION OF NEW YORK PROCESS OF APPLYING Application filed February This invention relates to processes for applying designs to cylinders and has for its object to provide a process of the character specified comprising few steps and embodying such accuracy as to permit a series of correlated designs, (such as a plurality of individual col-or designs, the successive printing of which make up a composite whole) to be applied to a series of cylinders in register with eacliother.

To these ends and others which will appear later herein, my improvements comprise features set forth hereinafter in their present preferred embodiment. My improved process may be fully practiced with Very simple accessories, including only the receivingjcylinder and a pressure cylinder, mounted to roll together-in surface engagement. But when said process is practiced on a production basis more extensive mechanism is found advantageous in the interest of speed and economy. p

To that end I have illustrated in the drawings accompanying this specification an apparatus, largely of known character, in connection wherewith my improved process may be carried out with speed and convenience.

Therein Figure 1 is an end elevation, partly in section on line 11 of Fig. 2, of such an apparatus and Fig. 2 is a plan view thereof. Fig. 3 is a fragmentary end view of the cylinder gears, looking in a direction opposite to that from which Fig. l is viewed. Fig. 4 is a diagrammatic end elevation of a part of what is shown in Fig. 1 illustrating a moditication of my improved process. Figs. 5 and 6 are views similar to that of Fig. 4 illustrating further modifications of said process. Fig. 6 is a face view of the sheet shown in position against the ears on the cylinder. Fig. 7 is a side elevation of a modification of the apparatus for carrying out a further modification of the process.

Directing attention now particularly to Figs. 1, 2 and 3, cylinder 2, preferably having a gap therein, has yieldable blanket 3 wrapped thereabout, one end of the blanket being secured within the gap at 4 and the other end being drawn up under tension on roll 5 near the other end of the gap. Said nnsrens r0 CYLINDERS 7. 1928, Serial No. 252,446.,

cylinder has the opposite ends of its shaft 6 supported for rotation in the upper ends respectively of opposite arms as 7 pivoted on fixed shaft 8 in uprights 9, 9 of frame 10.

Engaging suitable bearings in the lower ends .r

of said arms are the opposite ends of'cross bar 11 and pivoted midway the length of said cross bar is yoke 12 connected by thrust member 13 with eccentric 14 fixed to shaft 15 turning in fixed bearings as 16 on frame or other suitable material,'and may be formed directly on the body of the cylinder. Its shaft 18 has fixed bearings with removable caps as 19, in uprights 9, 9. Cylinder 2 may be driven in rolling engagement with receiving cylinder 20 by hand wheel 21 fixed to one end of shaft 6 or by motor22'connected by the usual gearing with gear 23 fixed 'to shaft 6. Cylinder shaft 18 has fixed thereto gear 24 for engagement with gear 23. For

holding cylinder 20 temporarily against rotation, latch 25 pivoted to ear 26 engages between adjacent teeth of gear 24. Also to insure initial nonslipping engagement of cylinders 2 and 20, there is fixed to gear 24 auxj iliary tooth 24 having a radial face for the gear tooth depth for engagement with the face of auxiliary tooth 23 of gear 23, 'which tooth terminates at the gear pitch line.

The present invention is particularly directed to the accurate transference of thin carbon tissue, generally in the form of sheets, on the face of which is carried a design in gelatin, from a surface on which said carbon tissue is mounted in predetermined register, to thesurface of a copper roll in similar register. For the purpose of illustration this copper roll may be called the receiving roll. After the carbon tissue is applied, gelatin face down to the copper roll, the tissue is dampened and stripped off leaving the gelatin, through which the roll is etched and later used as an intaglio roll for gravure printing.

The transference of ink from one roll to another for the preparation of lithographic printing cylinders is well known and long practiced but the transferring of carbon tissue pre-arranged in predetermined positions on a layout surface to predetermined positions on the surface of a receiving cylinder has many times been attempted but never successfully accomplished as far as the present applicant is aware, until the invention of the present process by him,

In practicing my improved process the surface of yielclable blanket 3 is provided with gage marks as 27, preferably on bits of paper I (i s28, secured by an adhesive to said blanket.

The piece or pieces of transparent carbon tissue as 30 are provided with similar marks as 29 which overlie and register with the marks as 27 thereunder. Then the pieces of carbon tissue are fixed by some known means, as by bits of adhesive paper 31 in their registered position on cylinder 2. p

Lever 18, having been previously moved to an upright position, cylinders 2 and 20 are thereby slightly separated. Then by means of hand wheel 21 cylinder 2 is rotated in clockwise direction until the leading edge of the first sheet of carbon tissue is on or nearly on the plane through the axes of the two cylinders.

Then lever 18 is moved down to the position of Fig. 1 whereby the cylinders are brought into contact under pressure. Then motor 22 is started, rotating blanket cylinder 2'in clockwise direction against the previously prepared receiving cylinder 20, whereby the carbon tissue adheres to the copper cylinder and is stripped from the blanket on cylinder 2. The carbon tissue, gelatin side down, is thereby transferred to the copper cylinder in corresponding register with its previous position on the blanketed cylinder 2.

The copper cylinder, carrying the design or designs in gelatin under the carbon tissue, may then be treated according to known methods for the removal of the tissue and the etching of the design or designs.

In the modification of Fig. 4 the carbon tissue is located on the face of a flat flexible sheet of thin material such as steel32, by the previously described gage lines. Said flexible sheet is provided with means, such as bar 33, for engagement with opposite ears as 34, fixed to opposite ends of cylinder 2, for prelocating said sheet on said cylinder. Sheet 32 is then wrappedabout cylinder 2, with the carbon tissue out and the transfer is made to cylinder 20 from sheet 32, all as previously described in connection with the earlier figures of the drawing.

In the modification of Fig. the flexible sheet 32 with the carbon tissue thereon is wrapped, tissue side down, about receiving cylinder and said sheet is located thereon by the engagement of its bar 33 with opposite ears as 35 on the ends of said cylinder.

In Fig. 6 sheet 32 is fed downwardly between cylinders 2 and 20 and is registered by the engagement of its notched leading end with opposite ears 36, 36 on cylinder 2.

In Fig. 7 sheet 32 is laid flat on yieldable blanket 38 on table 39 an d is located by its ears 33 in brackets as 37 fixed to table 39. Then cylinder 20 is rolled in geared relation over table 39, taking up the carbon tissue from the face of sheet 32.

I claim:

1. That improvement in the art of applying a design to a cylinder comprising, first preparing the design by arranging in predetermined position on a layout surface carbon tissue, then rolling together said prepared layout surface and the surface of the cylinder under yielding pressure in predetermined register and thereby transferring the carbon tissue to the surface of the cylinder,

2. That improvement in the art of applying a design to a cylinder comprising, first preparing the design by arranging in predetermined position on a layout surface a material which is capable of adhering to the cylinder and of being stripped from the layout surface, then rolling together said prepared layout surface and the surface of the cylinder under yielding pressure in predetermined register and thereby transferring the design material to the surface of the cylinder. v

3. That improvement in the art of applying a design to a cylinder comprising, first preparing the design by arranging in predetermined position on a layout surface carbon tissue, then rolling. together said prepared layout surface and the surface ofa copper cylinder under yielding pressure in predetermined register and thereby transferring the carbon tissue to the surface of the. copper cylinder.

4. Thatimprovement in the art of applying a design to a cylinder comprised in first preparing the design on a flexible sheet of material in a material which will adhere to the cylinder, encircling another cylinder with said flexible sheet, said flexible sheet also being yieldabl e or yieldably mounted, then rolling the two cylinders together under pressure, in surface engagementin predetermined register, whereby the design'is transferred to the surface of the first mentioned cylinder.

5. That improvement in the art of applying sheet material with a design thereon to a cylinder comprised in first mounting said design carrying sheet material on a flexible sheet of material in predetermined position, then feeding said sheet under pressure in pre determined register, with its design carrying material against said cylinder, between said cylinder and another cylinder having a yieldable facing, whereby the design carrying material is applied to the surface of the first mentioned cylinder.

In Witness whereof I hereby afiix my signature, this 6th day of February, 1928.

WILLIAM H. BANZETT. 

